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 Add this item to the list   824078 Original description
Remarks (public):Phanerochaete subodontoidea morphologically resembles Phanerochaete odontoidea, whereas they were distinguished merely based on the width of basidiospores [P. odontoidea: 2.6–3 µm vs. P. subodontoidea: 3–3.7 µm, Wu (2000)]. However, after carefully measuring the basidiospore size of available specimens of these two species, we found basidiospore ranges are highly overlapping (Table 2). Additionally, the ITS sequences of the holotype of P. subodontoidea (CWN 00776) is almost identical to the ITS sequences of the paratype of P. odontoidea (Wu 9310-8). We failed to obtain sequences from the holotype of P. odontoidea (Wu 910807-11), but Wu 9310-8 was confirmed as conspecific with the holotype by morphological comparison. Thus, based on morphological and molecular evidence (Fig. 2), P. subodontoidea is treated as a synonym of P. odontoidea. A paratype specimen named P. odontoidea (Wu 9311-46) probably belongs to the genus Flavodon Ryvarden based on preliminary BLAST results of nuc 28S sequences. However, this specimen was not included in this study. 
Description type:Original description 
Description:Basidiocarps annual, effused, adnate, ceraceous, somewhat brittle, 50–200 μm thick in section (aculei excluded). Hymenial surface initially buff, with age turning ochraceous to pale brown, no colour changes in KOH, tuberculate to grandinioid when young, becoming odontioid to hydnoid with age, extensively cracked; margin paler to whitish, fairly determinate. Aculei conical to cylindrical, usually separate, with obtuse to acute apex, 1–4 per mm, up to 100–700 × 100–250 μm. Hyphal system basically monomitic, some specimens with quasi-binding hyphae near substratum; generative hyphae simple-septate. Subiculum fairly uniform, composed of a basal layer of compact texture; generative hyphae mainly horizontal, colourless, 4–6 μm diam., with 0.8–1 µm thick walls; quasi-binding hyphae sometimes present near substratum, colourless, 1–3 µm diam. Hymenial layer thickening, with compact texture, generative hyphae somewhat vertical, colourless, 3–6 μm diam., slightly thick-walled. Trama of aculei of compact texture; generative hyphae mainly vertical, other features similar to those in subiculum; crystal masses present near apex. Cystidia lacking, but projecting hyphal ends in the hymenium may be present. Basidia clavate, 14–18 × 4.5–5.5 μm, 4-sterigmate. Basidiospores narrowly ellipsoid to cylindrical, adaxially slightly concave, smooth, thin-walled, homogeneous, inamyloid, non-dextrinoid, acyanophilous, 6–8.1 × 2.5–3.3 μm (Table 2). See also Wu (2000) for descriptions and illustrations. 
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